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PS2 with LA Problems
Sounds like you have a faulty LA6508 Chip. Its a classic problem to affect your model of machine.
Pretty easy to sort out for a competent modder.
You need to take your machine to a modder and ask them to replace the LA6508 Chip with a bypass chip called a LA6508R chip. The original chip in the 50003 machines is designed to burn out if a poor quality copy is installed. This fault can sometimes take the laser out too!! try not to use the machine at all untill the repair has been carried out. The LA chip controls the Focus of the laser eye. If the LA chip goes the result is the ps2 pushing too much voltage out to the laser and buring out one or both of the focus coils in the laser.
Sorry to bore you but its quite a technical problem??? I have replced over 30 LA chips now and certainly sorts out your machine.
good Luck. :-)
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